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using System;
using XenAPI;

namespace XenAdmin.Wizards.GenericPages
{
    public abstract class ReasoningFilter
    {
        protected ReasoningFilter(IXenObject itemToFilterOn)
        {
            if (!(itemToFilterOn is Host) && !(itemToFilterOn is Pool))
                throw new ArgumentException("Target should be host or pool");

            baseItemToFilterOn = itemToFilterOn;
        }

        /// <summary>
        /// Base item that should be used to filter on
        /// </summary>
        private IXenObject baseItemToFilterOn { get; set; }
        //public abstract bool FailureFound { get; }
        public abstract string Reason { get; }

        public abstract bool FailureFoundFor(IXenObject xenObject);

        public bool FailureFound => FailureFoundFor(baseItemToFilterOn);

        public virtual void Cancel() { }
    } 
}
